Hi AA, That's awesome! Happy to help and hope you are enjoying your profession! Marc

I am loving it. I'm based in melbourne and im planning to sell refurbished machines in PH. hope all goes well! Thanks heaps guys

Hey cd, Thanks for the comment!

Hi D, You are welcome and thank you for the kind comment.

Yes they are! Thanks for the comment Bob!!!

HI, You are welcome and thank you for taking a moment to leave a comment! Marc

Hi Rod, You are welcome and thank you for taking a moment to leave your comment! Marc

Hi JK, Thanks for the comment!

Hey SEB, You're very welcome and thanks for the comment!

Hey aa, Marc here from Whole Latte Love... Happy you found the video and thank you for the respect!

You're very welcome!

You are welcome and thank you for the comment!

Hi Angel, Thanks for the comment!

Thanks so much!

Hi thanks for the comment and you are welcome. If you want to learn more about a variety of machine be sure and check out our other videos and our support wiki which has manuals, diagrams and more for most popular espresso machines. It's available here: wiki.wholelattelove.com/Main_Page Marc

Hi CL, Thanks for the comment!

Thank you! Cheers!

Hi Josh, You are welcome and thank you for the comment!

Hi h22, You are welcome! We do our best. Thanks for taking the time to leave a comment! Marc

Hi Chris, Thanks for the comment! Marc

Hi pdk, Glad you enjoyed it and thanks for the comment!

Hi T, You are welcome and thanks for the comment! I (Marc) am a car guy too! Although more of the American muscle car variety.

Whole Latte Love Marc, I also have a 1999 SVT Cobra which is my pride and joy. And it's a convertible. I love to bring it to cars and coffee events. Now that's living, right?

Hi WH, Yopu are welcome and thank you for the comment!

Great to hear! Thanks for the comment.

Hi Glenn, You are welcome and thanks for the comment!

Hi Zach, Thanks for the comment! Marc

Hi Ron, You are welcome and thank you for the comment!

Appreciated

Hi AZ, Thanks for the comment! Marc

Hi P, You are welcome and thanks for the comment!

Hi Tarik, Thanks for the comment!

Thanks!

Hi Harvey, Thanks for the comment! This is the stuff we like doing the most.

Hi JC, You are welcome and thanks for your comment!

Hey MCB, Thabks for the comment and good look with repairs! Marc

Glad you enjoyed it

@@Wholelattelovepage am working on one my self needs a good clean. The motor has given in won't turn the pump as was lime scale in it changed pump did not help all runs ok on a drill so waiting for a new motor.

Our pleasure!

Correct!

Hi JS, You are welcome and thank you for the comment! And I'll take the beer!!! Marc

+paolo cortese Hi Paolo., Thanks for your comment!

Hi Gregor, Thanks for the comment! Yes we use that on rotary pump and plumbed machines from ECM and Profitec to do a true line pressure pre-infusion.

Hi Gregor thanks for the Info, any idea on how to learn more about fixing coffee Machines, would like to do this as a job Please advise

Thanks and thanks for the comment!

Hi Egli, Thanks for your comment we seriously love getting the a whole latte! If you like this video, we have a similar one coming out in the next day or so featuring a cutaway Profitec Pro 700.

Hey Jens, Glad you enjoyed it! Here's another that's very similar which takes you inside the 4 types of boilers used in most espresso machines: kzfaq.info/get/bejne/hbupqtKD2JrRlY0.html Marc

Any time

Sounds great!

Hi DM, you’re welcome. Thanks for the comment and glad you enjoyed! Marc

Great video. However you didn’t explain the preinfusion chamber. The top spring on the release end of the grouphead opens at about 1,5 atm allowing the chamber to fill resulting in some time before the pressure on the puck builds up to full brewing pressure. This is one of the unique design features of the e61’s patented design.

Hi le, Anda dipersilakan dan terima kasih atas komentarnya! Marc

Hi Matthew, Thanks! A very nice machine!

Hi KL, Thanks for the comment! Marc

Hey b, Thanks for the comment! We have a variety of support videos including some on electronics. Those are machine specific so best bet is to go to our support section here and search by brand and then the machine you are interested in: support.wholelattelove.com/hc/en-us

Hi J-SD, That's a lot of spare parts!

Hi natsoray, Thanks for the comment. I will say ECM machines tend to be some of the most straightforward under the hood. Well engineered using the K.I.S.S. principle! Marc

It's a fine machine indeed!

Hi AS, Thanks for the comment. If you like this video you should enjoy this newer one with cutaway models of toher Espresso machine boiler types: kzfaq.info/get/bejne/hbupqtKD2JrRlY0.html Marc

@@Wholelattelovepage Hi Marc, Already did, i am honored talking with you.

Hi PI, Thanks for the comment and question. No designs I'm aware of other than cheap entry-level espresso appliances which do not have a 3-way valve. With those you end up with a soupy mess in the filter basket and residual pressure after an extraction. Marc

Lol

Hi Sara, It sure is - Thanks for the comment!

Hi BB, Thanks for the comment, question and request. If you like this video you'll love this newer one with a look inside cutaways of single, HX and dual boilers: kzfaq.info/get/bejne/hbupqtKD2JrRlY0.html Reheat times are fairly quick, in most HX machines you'd be all ready to go by the time you prepped the next shot. Large thermal mass with water in boiler and the 6 or so pounds of metal in the group. Marc

Hi zg, We have some videos featuring internals of premium entry-level machines like the Gaggia Classic. Here a video showing a complete rebuild of that machine: kzfaq.info/get/bejne/hJ-ZYKh5nNe8f5c.html Marc

Hi Daniel, You are welcome and thanks for the question. So the machine should be descaled on a regular basis depending on how hard you water is. As to the lever being stiff... There is a cam internally which actuates a valve. Could be some build up on that or some wear. Can't be certain that's the issue but maybe. Here a video showing how to clean an E61 mushroom, jet and top valve: kzfaq.info/get/bejne/aq5larSEqrOomKc.html

Hi James, Thanks for the comment! Very close to correct on your edit. Here's what's going on: Water circulates from the heat exchange section inside the boiler out to the brew group and back. No pump involved in making that happen just thermodynamics in the thermo-siphon loop. Most E61 group machines uses a flow restrictor which controls the flow rate of the thermo-siphon. Changing the opening size of the flow restrictor affects the temperature of the group. Most heat-exchange boiler machines require a short cooling flush prior to brewing to get rid of over-heated brew water. There are a number of newer HX machines with PID temperature control which do not require cooling flushes. PIDs give very accurate in boiler temperatures. Manufacturers can then engineer the thermo-siphon with a flow restrictor sized to produce a certain brew temp say 200F even when the main boiler is running in the 260'sF.

Hi G, Thanks for the question. It's normal to have some water come out when steam is first turned on. Within a second or two it should go to steam only. The initial bit of water is from condensation. Marc

Not sure we fully understand the question. Do you mean overhead such that it could be gravity fed? At some point a pump is required to create the ~9bar pressure used in the espresso brewing process.

+vlariz nevermind just found your video about adjusting the sirai pressurestat you guys are awesome

+vlariz Thanks for your question and well answering it yourself! Well I guess we did but you found it on your own so you are awesome too! If you have more ?'s ask away. We're always happy to help.

OMG, bringing back high school memories - thanks! Marc

@@Wholelattelovepage like the Magic School Bus mannnn 🧙‍♂️🥬🔥

+Aleksander Gustyn If you like that, you'll get a kick out of this one: kzfaq.info/get/bejne/e5qgZ86X3JumfH0.html Just don't try it at home. We are not responsible for lost digits!!!

Hey Todd, thanks for the comment and question. I don’t see a reason why you could not do that. Many machines use a T into the line going to the drip tray. Like you I prefer that setup. That said, it’s a very small amount of moisture released from the open relief valve, the boiler is hot so it evaporates rapidly and convection rapidly moves the water vapor up and out of the machine. If you decide to route to drip tray be sure the tube off the VR valve doesn’t get kinked. Kinks can prevent the VR valve from closing by causing back pressure on the valve. Marc

No, sorry

Hi HK, You are welcome. Heat exchanger is always full of water and once heated up is constantly circulating water out to the E61 group head. Marc

Hi DF, Sorry we do not.

@@Wholelattelovepage OK Thanks

Hi David. Does look like kevlar but it's not. Just a high-quality jacket around insulating material. Boilers are protected from bad things happening by thermal safety switches and/or relief valves.

Hi CG, I'm checking on Rocket but I know for certain Crem machines do not have a Teflon tube in the boilers. Check out current Crem machines here: www.wholelattelove.com/collections/semi-automatic-espresso-machines?_=pf&pf_v_brand=Crem

Thanks for the interim feedback!

Hi Rich, I sure do! That extra time allows the group head to reach full temperature. In E61 groups there's a thermo-siphon which through convection is constantly circulating water through the group to heat it up. In order to get stable brew temps the group must be fully warmed prior to use. In this type of machine full heating of all the metal in the group head does take about 30 minutes. Marc

@@Wholelattelovepage I thought releasing water thru the group head prior to pulling the shot was supposed to do that. In a world of espresso nits this is just one more to pick.

@@brozbro In HX machines, releasing water before pulling the shot is actually known as a "cooling flush" that gets rid of the water that has heated up too much in the HX. Just letting water run through the group head will only contribute a little to heating it up faster, but it takes a lot of time (and water) to heat it up completely.

Je vous en prie. Merci pour le commentaire!

+Petar Rusev Hi Petar, Yes, we recommend setting pressure to 10 bar with the blind basket in place - that will give you ~9 bar when actually brewing. Sorry on the Duetto review. Still on the list but other priorities at the moment. Wish there were more hours in the day!!!

Thank you WWL guys! I know that you are # 1! 😃 I am happy to hear that Alex Ditto III is in your list with forthcoming reviews, because I think it deserves it! BTW, I see the decrease in its price compared to those of R58 V2. In the US ADIII is cheaper than R58 V2, while in Europe the ADIII has equal or a bit higher price than R58 V2. I saw that ECM, ADIII and R58 V2 have one and the same E61 brew group, which lead me to the conclusion that all of them are produced in Bezzera factory. Only Expobar has their own newsgroup with the cavity around the water diffuser. So, I will be more than happy to see your comparison video between Alex Ditto III, Rocket R58 V2 and Expobar Brewtus -R. 😃

+Petar Rusev Hi Petar, Can assure you that ECM, AD, Rocket and Bezzera machines are not assembled in the same factory. They may share some components made by other manufacturers but machines are made in their own shops.

Hi guys, Sorry about my inaccurate expression! Yes of course, that they are being produced separately. I meant that only their E61 brew group are one and the same. If you look them below the brew head, you will see that the diffusers are the same. Only Expobar brew head design is different. BTW, has the Faema E61 patent expired already on 2011?

Late to the discussion, but I had the same thought as you did. I am assuming that once the pump pressurizes the heat exchanger, water will flow from high pressure to low pressure meaning that water will flow through both lines of the thermosiphon to the back of the E61 group. However, since the colder water comes into the middle of the Hx, water leaving the Hx through the hot water line and through the recirc line of the thermosiphon should both be close together in temperature. Even if they are off by a few degrees, they will mix in the first chamber of the E61 before moving through the mushroom. I hope that makes sense, I've only been studying these machines for a few months.

Hi c, Thanks for the question. A little unsure of what you are referring to. One gauge measures pressure in the section of the boiler producing steam. The brew pressure gauge measures pressure in the brewing circuit - water which comes from the heat exchange section of the boiler. That's only active when brewing.

Hi MZ, Thanks for the question. Wish I knew which model Bezzera machine you have. Does your machine use an E61 group with a lever to start and stop the extraction or the BZ group? if E61 it may need a cleaning. If BZ group it has an electrical solenoid valve which may need attention if not blowing off pressure at end of extraction. Here's a video showing how to clean E61 group which may help with your problem: kzfaq.info/get/bejne/aq5larSEqrOomKc.html Marc

@@Wholelattelovepage Thank you Marc. It´s Bezzera Mitica TOP with E61 group (HX boiler and ROTARY pump). I´m your big fan so I have already checked all avaliable videos out there and E61 group has been cleaned on regular basis (every 3 months)...it´s true that for a short time it helps (and by short time I mean 5-6 espresso :) )

Hi Coder, Great question! I do not know the answer with 100% confidence but it's likely to keep excessive heat and/or water from getting to the gauge.

Thanks! The video is very informative.

Hi CG, I'm checking on Rocket but I know for certain Crem machines do not have a Teflon tube in the boilers. Check out current Crem machines here: www.wholelattelove.com/collections/semi-automatic-espresso-machines?_=pf&pf_v_brand=Crem

Hi lowspeed, The boiler water level probe probably will not work in mineral free water. You can get around that by adding a pinch of salt to the water. However, we do not recommend using distilled water in espresso machines. Mineral free water makes bad tasting coffee. Espresso will over-extract due to lack of mineral content. No scale will form but there is a risk of corrosion and leaching of boiler metals. Ultra-pure water is a fairly strong solvent. That's the reason why distilled and RO purified water is never delivered in or piped through metallic components.

@@Wholelattelovepage I ve been using RO water in my Cimbali Jr for 20 years!

Hi a, yes. Check valve and non-return are used interchangeably.

@@Wholelattelovepage duly noted. you guys are awesome in what you are doing.. 👍👍👍.