You're right and that's what I've also been doing till our draconian lockdown when some veggies weren't available! I remembered that my Granny used to do this, probably something she learned during the years of the Great Depression which followed the Spanish flu! My grandpa used to tell how he was only 8 and had to walk for miles to get provisions as he was the only one who didn't get sick in his family but he was not allowed to go into town, had to leave the shopping list with the money at a pre-arranged place just outside town, then walk away and wait till the shopkeeper's delivery man came back with the goods, imagine having to do that at the age of 8!
Now I've gone and told you a long story;)
RE: Recycling Leftover Vegetable Off-cuts