Glass on furniture is always a classy addition to any outdoor piece. Whilst it is typically more robust than indoor glass, good maintenance and care is suggested to ensure its longevity.
A glass surface outdoors typically attracts more dirt than an indoor glass surface. To keep your glass looking pristine wipe away any dirt with a soft microfibre cloth, wash with a mild soapy water solution, dry thoroughly prior to using your favourite glass cleaner to remove any streaks. Avoid using any harsh scrubbing sponges or anything that could scratch the glass.
The underside of the glass will also need cleaning from time to time (potentially less often). Follow the same cleaning steps as noted above.
*Note: Always use caution when opening boxes and removing the protective materials. Avoid using anything sharp as to not damage the products.