Mexico City in general is very safe - especially the neighborhoods of Condesa, Roma, Juarez and Polanco. However, like any big city, you should be aware of your surroundings and don’t venture into areas which don’t “feel safe”. Do NOT bring or wear expensive jewelry or watches, and be mindful of your mobile phone - do not leave it laying on the table during a meal, for example.
Just like the US and Canada, Mexico uses Type A and B plugs and operates on 127V supply voltage and 60Hz
When the municipal water leaves the treatment plant it meets all global safety standards. However, the deteriorating distribution system of old pipes makes it a risk and we suggest drinking bottled water only (brushing your teeth, showering, washing dishes, etc. is all perfectly fine with tap water).
We encourage you to try the wonderful street food Mexico has to offer - but again use common sense. Go to a street vendor who looks busy, who is cooking on high heat, and whose products look fresh. Avoid uncooked greens (like lettuce / salad) from street vendors. Pack some meds if you have a weak or sensitive stomach.
Tipping in Mexico is important and expected. Whether it is $5 MXN (approx $0.30 USD) for a street musician, or a percent of the bill for service in a restaurant. For dining, 10% of the bill should be added for “good” service, and 15% for “excellent” service. Tips can be paid in cash or added to your credit card but you MUST tell the waiter what percent to add before charging your card. You cannot add tip to a credit card after the card is charged. Simply say “más diez” to add 10%, or “más quince” for 15%. Propino = tip in spanish.
Mexico uses the Peso, which can be exchanged at the airport upon arrival or withdrawn from any ATM using your debit card. You should carry some cash for eating at the local markets, buying a water from a street vendor, or purchasing crafts at the artisanal markets. Most sit-down restaurants accept credit card.