original: Some beverage products such as ales and stouts e. g. Guinness rely on this effect to produce the 'head' on the surface of the poured product.
simplifications: Some drinks such as ales and stouts e. g. Guinness use this effect to get the 'head' on the drink's top. Some ales and stouts rely on this effect to produce the 'head' on the surface of the product. Beverages such as ales and stouts rely on this effect to produce the foam. It sits on the surface of the poured product. Some drinks such as ales and stouts, e. g. Guinness, use this to create the 'head' on the surface of the poured drink. Some drinks such as ales and stouts like Guinness rely on this effect to make the 'head' on the surface of the poured product. Some drinks like ales and stouts rely on this effect for the "head" on the surface of the poured drink. Some beverages rely on this effect to produce the 'head' on the surface of the poured product. Examples of this are ales and stouts. Some drinks like ales and stouts rely on this effect to make the 'head' on the surface of the poured product. Beverages like ales and stouts (e.g. Guinness) need the effect to create the 'head' on the poured product. Some soft drink products, e.g. ales and stouts. g. Guinness relies on this effect to produce the ' head ' on the surface of the poured product.