They sell demiglace in boxes and bags too about 10g per 100ml. If it's a matter of reduction of water, that'll make it 3x to 10x more expensive for the same amo

They sell demiglace in boxes and bags too about 10g per 100ml. If it's a matter of reduction of water, that'll make it 3x to 10x more expensive for the same amount of bones/carcass, if we use the 1-3g per 100 numbers in the article. I was curious and went to check and this actually tracks based on Waitroses (UK) house brand stock and demiglace. Their stock is 2.5g and 48p per 100ml and demiglace is 10g and £1.9 per 100ml, 4x the protein content and around 5x the price