Others can cause problems and lead for example to a veil-like protein haze. To exclude these proteins, must, new wine to test and fined if necessary with a protein-binding material - usually with bentonite (natural soils).
Kuwatenga protini hizi, lazima, divai mpya wa kupima na kutozwa faini kama ni muhimu na vifaa protini kisheria - kwa kawaida na bentonite (asili udongo).