170mm | Pack of 600 Great for toasting sandwiches, paninis, pizzas and flatbreads, the 170mm contact grill bags from Colpac are ideal for cafes, food vans and sandwich shops alike. The bags are designed to sit around your ingredients and allow for high-quality toasting, without spilling onto your grill. Excellent grease resistance prevents the bags from becoming soggy - ideal for cooking and serving food without having to use extra disposables.