Locally we have 2 foodbanks. The one supported mainly by the local churches is quite formal. Customers must have a written referral from SW, CAB, GP, and is given a 3 day supply of tins, longlife milk, cereal etc. They have a huge stockroom, the shelves laden with dried and tinned food. Advice is given re applying for emergency cash and no one is allowed more than 3x3day supplies. People are not encouraged to visit the centre - the bags of food are delivered by volunteers to their home address (which has led to accusations that elderly men in posh cars are leaving the food bank with loads of bags of food.
The other Food bank takes donations of fruit and veg from gardeners and allotment owners and is happy to accept HM jam and baking. There is usually a pot of soup, tea & scones on the go for anyone who drops in. Their bags of groceries vary according to the needs of the customers (e.g. they always ask if there are facilities for heating or cooking food) and what they happen to have in stock at the time. They do not require referrals, nor do they keep careful records. They do not distinguish between the deserving/undeserving, they say that no child should go hungry regardless of whether their family have fallen on hard times or always been feckless.
Neither of these foodbanks is affiliated to the Trussell Trust, so the numbers helped there will not be included in the Trust's figures.