I had a few tomato plants do well in the garden this year. With a pretty good amount of San Marzano, Cherry, and Early Girl tomatoes, juicing and reducing was the only practical way to deal with them. To do it efficiently I like to use a tomato juicer (mine looks something like this). I put the juice in a pot on the stove for an hour or two to reduce it to a sauce. It takes a little time, but if you have a bunch of ripe tomatoes you can make a banger of a sauce. Throw in some Italian herbs, salt, and a few hot pepper flakes and you’ve got my favorite sauce. I’ve been eating that on ravioli for a few weeks now and I think it’s great: sweet (from the cherry tomatoes) and full of flavor.

As far as efficiency goes, it does take some energy if you just evaporate the watery part on the stove. You could also let the water separate out from the tomatoes and just drain it off. That should make the reduction much faster.

Honestly, I just feel sorry for the little one. Life is unfair enough, but to get such a shitty start? I mean, these very early life experiences can set the tone for your whole life. Hopefully he gets placed with a family who can help him through that.