South Africa: tap water is safe to drink.
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Tap water is safe to drink in most South African cities, including Cape Town, though check for any local drought-related advisories.
Yes — since tap water is safe in South Africa, ice made from it is generally fine too.
Brushing your teeth with tap water is usually fine even where drinking it isn't recommended, but if you want to be extra cautious in South Africa, use bottled water for that too.
Sealed bottled water from a reputable brand is widely available and the simplest safe option in South Africa — just check the seal is intact before drinking.
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