Certain goods and services are exempt from VAT, and others are subject to VAT at a lower rate of 5 percent (the reduced rate, such as domestic gas supplies) or 0 percent ("zero-rated", such as most food and children's clothing).[48] Exemptions are intended to relieve the tax burden on essentials while placing the full tax on luxuries, but disputes based on fine distinctions arise, such as the notorious "Jaffa Cake Case" which hinged on whether Jaffa Cakes were classed as (zero-rated) cakes—as was eventually decided—or (fully taxed) chocolate-covered biscuits. Until 2001, VAT was charged at the full rate on sanitary towels.[49]