Help: DIY Espresso Extract (Extract vs Concentrate)

[muranternet]

Does anyone have a decent home method for creating espresso flavoring? I just tried my first batch with 250ml grounds + 250ml PG, steep at room temp in the dark for 3 days, then filter through untreated coffee filters (3 cycles). I wound up with a very dark solution, but no visible particulate matter in the diluted vial. At 5% it had no flavor. At 10% I got the beginnings of something, though lacking tannins. It took about 40% to start getting espresso notes. At least there were no burned flavors.

I'm hoping I can get something usable at reasonable percentages like a flavor concentrate without going the carboxylic acid -> esters route. Thanks.

 

[rowdyplace]

Does anyone have a decent home method for creating espresso flavoring? I just tried my first batch with 250ml grounds + 250ml PG, steep at room temp in the dark for 3 days, then filter through untreated coffee filters (3 cycles). I wound up with a very dark solution, but no visible particulate matter in the diluted vial. At 5% it had no flavor. At 10% I got the beginnings of something, though lacking tannins. It took about 40% to start getting espresso notes. At least there were no burned flavors.

I'm hoping I can get something usable at reasonable percentages like a flavor concentrate without going the carboxylic acid -> esters route. Thanks.

Since I'm from Alabama, this one is "Redneck Simple". Check out the full details on my blog.

<<<---Click here for the blog.

 

[muranternet]

Is PG safe to microwave? (Thinking side compounds from hot spots in the liquid.)