A common approach is a high-key seamless setup: use a cyclorama-style sweep, or simply curve white paper/card behind the product so there’s no visible horizon line. Light that background separately so it runs about a couple of stops brighter than the acrylic, which helps it reproduce as pure white.

For small clear objects, give the subject its own carefully placed white card behind it, lit off-camera, so the card is hidden from the camera view but sends light through the object. Adjust brightness by changing the card’s distance from the light.

Be aware that clear objects on white often show dark edge lines (“blackline”) because of refraction. If the product looks too invisible on pure white, add controlled reflections with flags or colored cards/lights to define the shape. Placing the item on a sheet of clear acrylic can also create a clean reflection.

In short: separate background lighting, a seamless white sweep, and controlled reflections/flags are the key tools.